Don Alex Humphrey

Certified Chief Information Security Officer (CISO) | Senior Information Systems Security Officer | Security Control Assessor | 12+ years in cyber |

Winter Garden, Florida, United States

About

Active Security Clearance. Highly motivated Information Security Officer with a decisive focus on safeguarding the three pillars of Cyber Security: confidentiality, integrity, and availability. Routinely contribute technical knowledge to problem-solving and decision-making processes. Drives uncompromising quality in all facets of Information Technology to include hardware and software. Proactively demonstrates personal integrity and high ethical standards with customer contacts as well as all internal relationships. Organizes own work and completes independently to facilitate goal achievement. Deliberately delivers high quality results on time with minimum supervision. Characteristically seeks out positive ways to contribute to team, department and overall organizational goals. Acquiring depth and breadth of Cyber Security knowledge pursuant to personal growth, continuous improvement and the strategic value of the organization. Quality focused, goal-oriented individual with strong leadership capabilities. Organized, highly motivated, and detail-directed problem solver. Proven ability to work in unison with team members, internal, and external customers. Adapt easily to transition and change and decisively respond to critical situations. Exceed high standards and goals by effectively prioritizing, scheduling and coordinating activities, managing multiple projects and developing innovative ideas and strategies. Contracted To: United States Postal Service

Experience

  • Leidos (Full-time · 2 yrs 11 mos)
    • Lead Cloud Information System Security Officer
      Nov 2025 - Present · 9 mos

    • Security Control Assessor
      Sep 2023 - Nov 2025 · 2 yrs 3 mos

  • Senior Principal Security Architect- at Oracle
    Feb 2022 - Feb 2023 · 1 yr 1 mo

  • Senior Cyber Risk Consultant | Government and Public Services at Deloitte
    Jul 2020 - Apr 2022 · 1 yr 10 mos

  • Senior Information Systems Security Officer / Government and Risk Specialist at Raytheon
    Jul 2018 - Jul 2020 · 2 yrs 1 mo

    Senior Information Systems Security Officer for Infrastructure, Business/Cloud Apps Authorizations & Accreditation and Security Standards. Also a key team member of the Site Security Review team. Request code review (if applicable); conduct security testing; document security testing; request vulnerability scans; request penetration test (if applicable) request independent reviews (if applicable); conduct risk assessment; and develop a risk mitigation plan addressing high and medium risks and recommending whether the risks should be accepted, transferred, or further mitigated. Evaluates C&A documentation, prepares an C&A evaluation report that details the findings, makes the decision to escalate security concerns to the executive sponsor and Business Relationship Management portfolio manager or signs the C&A evaluation report and forwards the report to the certifier. Provides advice and consulting support to executive sponsors and Business Relationship Management portfolio managers during the BIA process regarding the baseline security requirements that apply to all information resources (including nonsensitive and noncritical) and the additional security requirements required to protect sensitive-enhanced, sensitive, and critical information resources to name a few. Contracted To: United States Postal Service

  • CyberSecurity Analyst at SAIC
    Feb 2015 - Dec 2017 · 2 yrs 11 mos